| Autor: |
Yeong-Tai Seo, Kuk Jin Jang, Min-Ho Lee, Woo-Kyeong Seong, Kook-Nyung Lee, Yong-Kweon Kim |
| Předmět: |
|
| Zdroj: |
Micro & Nano Letters (Wiley-Blackwell); 2014, Vol. 9 Issue 12, p874-876, 3p |
| Abstrakt: |
The reference electrode in an electrolyte solution affects the surface potential of the nanoFET (field-effect transistor) channel which can result in a false signal to be measured in the FET channel during bio- and chemical sensing experiments. In this reported work, it was demonstrated that different sensing results that were obtained were affected by the choice of the reference electrode through a pH and ion concentration sensing experiment. Three types of reference electrodes were compared: the SCE (saturated calomel reference electrode), the Ag/AgCl tube and the integrated Ag/AgCl electrode. The pH sensitivity equivalent to the surface potential was evaluated: 32.3, 34.6 and 16.3 mV/ pH in the case of the SCE, the refillable tube type Ag/AgCl and the integrated Ag/AgCl, respectively. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
Plný text